<!DOCTYPE html>
<html>
	<head>
		<style>
		#box{
		    width:500px;
		    height:300px;
		    color:blue;
		    background:lightgreen;
		    border-style:solid dotted dashed double;
		}
		</style>
	</head>
	<body>
		<div id="box">
		内容
		</div>
	</body>
</html>